ABOUT THIS RECIPECrispy edges, fresh sauce
Smashed potatoes are all about contrast: a soft center, lots of thin, roasted edges and a sauce that doesn’t cover everything. Baby potatoes are handy for this because they’re roughly the same size and easy to squash after boiling. Small new potatoes work well too, as long as they’re about the same size. This dish works all year round; small waxy potatoes are often easy to find in spring and summer, but firm baby potatoes from the store are also suitable outside that season.
First, boil the potatoes until tender, but don’t let them fall apart. After draining, leave them to steam dry for a few minutes: a drier surface can brown better in the oven. Press them flat with the bottom of a glass or measuring cup until they split open, without crushing them into mash. The more of each potato that touches the baking sheet, the more golden-brown spots you’ll get. Give the potatoes room and roast them at a high temperature; on a crowded baking sheet, they’re more likely to steam than crisp up. Turn them only once the undersides have browned.
The salsa verde is deliberately chopped roughly, not blended smooth. Parsley gives it a green, herby base; capers and anchovies add saltiness and savory depth. Lemon juice brightens the sauce and cuts through the rich mouthfeel of the olive oil. Chop everything with a knife on a cutting board and taste before adding extra salt, since anchovies and capers are already salty. No anchovies on hand? Leave them out and add a small pinch of salt. The sauce will be less savory, but still fresh and herby.
Spoon the salsa over the potatoes just before serving, so it seeps into their warm, split surfaces while the raised edges stay crispy. Serve them as a side with grilled fish or chicken, or alongside a simple green salad. Store any leftovers covered in the fridge and use within two days. Reheat the potatoes on a baking sheet in a hot oven until piping hot; add the salsa only afterward. The sauce is best fresh, so store it separately if you can.